Frequencies for d_4_hos_c2_63 variable in prds_hosp10_yr2011 dataset :

d_4_hos_c2_ |
         63 |      Freq.     Percent        Cum.
------------+-----------------------------------
       6128 |          1        0.02        0.02
      25881 |          1        0.02        0.03
          . |      6,148       99.97      100.00
------------+-----------------------------------
      Total |      6,150      100.00

by Jean Roth , jroth@nber.org , 24 Aug 2018